inner world; inner sphere
Refers to the internal, subjective realm of consciousness, thought, or personal experience, often contrasted with 外界 (the external world). Used in philosophical, psychological, or literary contexts.
See also: 外界
I gaze into my inner world through meditation.
Without being distracted by external stimuli, I listen to the voice of my inner world.
Compound of 内 (inside, internal) and 界 (world, sphere). The exact historical derivation is uncertain, but the word follows a common Sino-Japanese pattern for abstract spatial or conceptual domains.